Wall telephone base



FIG. 1 is a front, top and right side perspective view of a wall telephone base showing our new design;

FIG. 2 is a front elevation thereof;

FIG. 3 is a top plan view, thereof;

FIG. 4 is a bottom plan view thereof; and

FIG. 5 is a right side elevational view thereof, the left side view being substantially a mirror image.

The broken lines are for illustrative purposes only. 

The ornamental design for a wall telephone base, as shown and described. 